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Getting "No module named '_tkinter'" error #9017

Description

@SamusAranX

Bug report

I just wanted to use matplotlib to draw a line graph and save it to a file, but every time I try to import the pyplot module I get the abovementioned error message.

python3 -c "import matplotlib.pyplot"

Actual outcome

>>> import matplotlib.pyplot
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/local/lib/python3.6/site-packages/matplotlib/pyplot.py", line 115, in <module>
    _backend_mod, new_figure_manager, draw_if_interactive, _show = pylab_setup()
  File "/usr/local/lib/python3.6/site-packages/matplotlib/backends/__init__.py", line 32, in pylab_setup
    globals(),locals(),[backend_name],0)
  File "/usr/local/lib/python3.6/site-packages/matplotlib/backends/backend_tkagg.py", line 6, in <module>
    from six.moves import tkinter as Tk
  File "/usr/local/lib/python3.6/site-packages/six.py", line 92, in __get__
    result = self._resolve()
  File "/usr/local/lib/python3.6/site-packages/six.py", line 115, in _resolve
    return _import_module(self.mod)
  File "/usr/local/lib/python3.6/site-packages/six.py", line 82, in _import_module
    __import__(name)
  File "/usr/local/lib/python3.6/tkinter/__init__.py", line 36, in <module>
    import _tkinter # If this fails your Python may not be configured for Tk
ModuleNotFoundError: No module named '_tkinter'

Expected outcome

Whatever happens when import matplotlib.pyplot succeeds

Matplotlib version

  • Operating System: Windows Subsystem for Linux
  • Matplotlib Version: 2.0.2
  • Python Version: 3.6.0

I installed matplotlib using pip.
Doing sudo apt-get install python3-tk, as recommended by someone on Stack Overflow, didn't help.

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